Absolute PL quantum yield measurement is a method for determining the photoluminescence efficiency of materials.
Absolute PL quantum yield measurement is a method to determine the luminescence efficiency of a material, specifically how efficiently light (energy) absorbed by the material is converted into emitted light. - Since an excitation light source with a spectrometer is used, excitation at various wavelengths (approximately 350 to 800 nm) is possible. ■ Features of MST - The equipment is managed under controlled atmospheric conditions, allowing measurements of thin film samples without the influence of oxygen.
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basic information
When light (ultraviolet or visible light) is irradiated onto a substance, the substance may absorb that energy and emit light (photoluminescence, PL). Due to the absorption of light, electrons within molecules that were in a stable energy state (ground state) are temporarily excited to a higher energy state. After undergoing various processes, when the electrons in the singlet excited state return to the stable ground state, they release the difference in energy as light, which is called fluorescence. Furthermore, the light emitted when electrons transition from the triplet excited state back to the ground state is referred to as phosphorescence. This light emission is one of the important intrinsic physical properties of a substance. The photoluminescence quantum yield is a value that indicates how efficiently light emission is obtained relative to the absorbed light (energy). The photoluminescence quantum yield is calculated by measuring the number of photons absorbed by the sample and the number of emitted photons.
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Applications/Examples of results
- Absolute PL quantum yield measurement of solution samples - Absolute PL quantum yield measurement of thin film samples
Detailed information
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Please consult with us first. ★ We will start with a proposal for the analysis plan ★ We can, of course, meet at your company for discussions. We will carefully explain the analysis results and leave no questions unanswered. Please contact us at 03-3749-2525 or info@mst.or.jp!
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We will hold a visit seminar. ★ We offer free seminars with engineers tailored to customer needs ★ We will introduce analytical techniques and explain analytical data according to your requests. ◆ Example seminar content - A broad explanation of MST analytical methods - A detailed explanation of specific analytical methods from the principles - Explanation of the analytical data requested by the customer Please contact us at 03-3749-2525 or info@mst.or.jp!
Company information
MST is a foundation that provides contract analysis services. We possess various analytical instruments such as TEM, SIMS, and XRD to meet your analysis needs. Our knowledgeable sales representatives will propose appropriate analysis plans. We are also available for consultations at your company, of course. We have obtained ISO 9001 and ISO 27001 certifications. Please feel free to consult us for product development, identifying causes of defects, and patent investigations! MST will guide you to solutions for your "troubles"!